package com.cy.pj.goods.service;

import com.cy.pj.goods.dao.GoodsDao;
import com.cy.pj.goods.pojo.Goods;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
/*
此对象负责商品模块的业务逻辑处理
1）通过数据层对象访问业务数据
2）通过日志对象记录日志
3）通过第三方框架进行权限控制
 */
@Service
public class GoodsServiceImpl implements GoodsService{
    private static final Logger log=
            LoggerFactory.getLogger((GoodsServiceImpl.class));
    @Autowired
    private GoodsDao goodsDao;

    public List<Goods> findGoods(){
        long t1=System.currentTimeMillis();
        List<Goods> list=goodsDao.findGoods();
        long t2=System.currentTimeMillis();
        log.info("findGoods()"+(t2-t1));
        return list;
    }

    @Override
    public int deteleById(Integer id) {
        if (id==null||id<1)
            throw new IllegalArgumentException("传入的id值不合法");
            int rows=goodsDao.deleteById(id);
            long t1=System.currentTimeMillis();
            List<Goods> list=goodsDao.findGoods();
            long t2=System.currentTimeMillis();
            log.info("findGoods()"+(t2-t1));
            return rows;


    }

}
